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DFA Audit

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Hi all, Any DFA experts out there? I have Dfa_Bound_Top outlines in my footprints as well as Place_Bound_Top outlines. Problem is I can't seem to get DFA audit give me an error when I have 2 components too close to each other. I intentionally place parts where their DFA outlines overlap and still no error. What gives? Thanks Ken


Originally posted in cdnusers.org by canind
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    Ken,

    You need more than the Dfa_Bound_Top outlines defined in your footprints in order for the DFA Checks to work.

    Here are the prerequisites:
    1. Library symbols with Dfa_Bound_Top defined and if not present defaults to Place_Bound_Top.
    2. DFA_DEV_CLASS Property in your library symbols to group the different types of components and if not present than you will have to defined the component classifications at the layout (.brd) level.
    3. Define the DFA Spreadsheet at the layout (.brd) level which indicates what clearance is required when the to Components Classification come in contact with each other.
    4. Set the "DFA Package to Package constraints" to "On" at the top of the DFA Constraints Spreadsheet form.
    Thats it.

    Note: You will only get real time DFA checks when using Move while in Place Manually..(place manual -h) but you will not see any real time DFA Checks when using the standard Move command (Edit > Move)

    Hope this helps,
    Mike Catrambone
    UTStarcom, Inc.


    Originally posted in cdnusers.org by mcatramb91
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  • archive

    Ken,

    You need more than the Dfa_Bound_Top outlines defined in your footprints in order for the DFA Checks to work.

    Here are the prerequisites:
    1. Library symbols with Dfa_Bound_Top defined and if not present defaults to Place_Bound_Top.
    2. DFA_DEV_CLASS Property in your library symbols to group the different types of components and if not present than you will have to defined the component classifications at the layout (.brd) level.
    3. Define the DFA Spreadsheet at the layout (.brd) level which indicates what clearance is required when the to Components Classification come in contact with each other.
    4. Set the "DFA Package to Package constraints" to "On" at the top of the DFA Constraints Spreadsheet form.
    Thats it.

    Note: You will only get real time DFA checks when using Move while in Place Manually..(place manual -h) but you will not see any real time DFA Checks when using the standard Move command (Edit > Move)

    Hope this helps,
    Mike Catrambone
    UTStarcom, Inc.


    Originally posted in cdnusers.org by mcatramb91
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